Cat litter box



FIG. 1 is a front perspective view of the present cat litter box;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is top view of FIG. 1;

FIG. 5 is a bottom view of FIG. 1; and,

FIG. 6 is a right side view of FIG. 1, wherein the left side view is a mirror image of this view. 

The ornamental design for a cat litter box, as shown and described. 